Modal dispersion is one of the key impairments for few-mode fiber transmission. We propose a modified equalization method for CO-SCFDE system, which has better tolerance to modal dispersion and slightly increased comp...
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A novel multicasting-enable WDM-PON architecture utilizing multiple-pump fourwave- mixing (FWM) scheme with configurable multicasting amount and signal is proposed. Downstream transmission of 10-Gb/s point-to-point si...
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We propose time-and mode-division multiplexed passive optical network (TMDMPON), in which ONUs operate with both different time slots and switched modes. We experimentally demonstrate 10 km 2-mode TMDM-PON transmissio...
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A novel coupling scheme for unidirectional coupling of surface plasmons over a broadangle range is proposed, the large AFWHM up to 60o is achieved by cascading the grating resonance angle peak and the asymmetric excit...
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We propose a simple fiber-optic sensing technology for real-time multiplexed monitoring the methane concentration based on optical coherence domain reflectometry by synthesis of optical coherence function, and demonst...
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We propose a flow aggregation and migration (AM) scheme for circuit switched opticalnetworks. In our proposed AM scheme, flows could be aggregated into a lightpath to improve bandwidth utilization and be migrated fro...
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ISBN:
(纸本)9781934142301
We propose a flow aggregation and migration (AM) scheme for circuit switched opticalnetworks. In our proposed AM scheme, flows could be aggregated into a lightpath to improve bandwidth utilization and be migrated from heavily loaded lightpath to avoid packet loss. The benefits of improved bandwidth utilization and reduced blocking rate are illustrated through simulation results.
Radio resource allocation for multiuser multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) systems is an important issue to improve overall system performance. Although the achievabl...
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ISBN:
(纸本)9781509016990
Radio resource allocation for multiuser multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) systems is an important issue to improve overall system performance. Although the achievable rate has been adopted for a performance indicator in most resource allocation schemes, it may not be practical if a nonideal receiver including a suboptimal detector is used instead of optimal one. Under this practical circumstance, we study the subcarrier and power allocation to minimize the average bit error rate (BER) subject to a total power constraint. Different allocation algorithms are proposed for various MIMO detectors such as the maximum likelihood (ML) detector, linear detectors and the successive interference cancellation (SIC) detector. We also propose suboptimal algorithms to reduce the complexity. Based on the simulation results, we can confirm that the proposed suboptimal algorithm for each detector can achieve a comparable performance with the optimal allocation with a much lower complexity.
We report femtosecond pulse generation in an amplifier similariton oscillator and a prechirped fiber amplifier system. The final output power is 1.4W, and the fundamental repetition rate is 19.1 MHz after a single sta...
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We report femtosecond pulse generation in an amplifier similariton oscillator and a prechirped fiber amplifier system. The final output power is 1.4W, and the fundamental repetition rate is 19.1 MHz after a single state fiber amplifier. The pulsewidth is 109 fs.
Polarization-rotation based QPSK opticalsystem over atmospheric turbulence channel is proposed to overcome phase noise caused by the channel. The results indicate an order of magnitude better bit error rate performan...
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This paper investigates the suboptimal maximum likelihood detection for atmosphere channels. Simulation results show that the performance loss is quite small compared with lower bound given by maximum likelihood symbo...
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